package com.xiaoran.springcloud.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.xiaoran.springcloud.entitis.CommonResult;
import com.xiaoran.springcloud.entitis.Payment;
import com.xiaoran.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;

@RestController
@Slf4j
public class CircleBreakerController {

    public static final String SERVICE_URL = "http://nacos-payment-provider";

    @Resource
    private RestTemplate restTemplate;

    @RequestMapping("/consumer/fallback/{id}")
    //@SentinelResource(value = "fallback",)
    @SentinelResource(value = "fallback",blockHandler = "blockException",fallback = "handlerFallback",exceptionsToIgnore = {IllegalArgumentException.class})
    public CommonResult<Payment>  fallback(@PathVariable int id)  {
        CommonResult<Payment> result=restTemplate.getForObject(SERVICE_URL+"/paymentSQL/"+id,CommonResult.class,id);
        if(id == 4){
            throw new IllegalArgumentException("IllegalAccessException ,非法参数异常。。。。");
        }else if (result.getData()==null){
            throw  new NullPointerException("NullPointerException, 该id没有对应的记录，空指针异常");
        }
        return result;
    }

    public CommonResult<Payment>  handlerFallback(@PathVariable int id,Throwable e)  {
        Payment payment=new Payment(id,"null");
        return new CommonResult<Payment>(4444,"兜底异常handlerFallback，exception 内容"+e.getMessage(),payment);
    }

    public CommonResult<Payment>  blockException(@PathVariable int id,BlockException e)  {
        Payment payment=new Payment(id,"null");
        return new CommonResult<Payment>(5555,"兜底异常blockException，BlockException 内容"+e.getMessage(),payment);
    }
    @Resource
    private PaymentService paymentService;

    @GetMapping(value = "/consumer/paymentSQL/{id}")
    public CommonResult<Payment> paymentSQL(@PathVariable("id") int id){
        return paymentService.paymentSQL(id);
    }
}
